2,010 reputation
721
bio website infosecfrog.blogspot.com
location Scotland, United Kingdom
age 41
visits member for 2 years, 2 months
seen 7 hours ago
stats profile views 142

May
19
comment Resistance of a copper wire
This is not a question about a series/parallel combination
May
12
comment Distance away from earth to see it as a full disk
Duplicate of this one from 2012: physics.stackexchange.com/q/25509/2498
May
10
comment What planets are visible to the naked eye from Mars?
You can actually see Europa from earth if you block out Jupiter with something. Tricky, but apparently doable - I haven't managed it, but have seen all four moons easily with cheap binoculars.
May
10
comment What planets are visible to the naked eye from Mars?
Doh - yes, moons:-) and yes, you can see them with the naked eye from earth - a few astronomers have reported sighting Callisto and Ganymede. Io and Europa are masked by Jupiter's glare.
May
3
comment How do whisky stones keep your drink cold?
Hang on - this definitely means whisky stones are better. We don't want whisky below zero degrees!
May
3
comment How do whisky stones keep your drink cold?
Graham, you don't have cold whisky, but you definitely want to make sure it isn't warm.
May
3
comment How do whisky stones keep your drink cold?
Interestingly: Soapstone appears to be renowned for its high Specific Heat Capacity: 0.98 J/gK - about 20% greater than other natural stone. It is also incredibly dense and non-porous, which is why it is chosen for whisky stones
May
3
comment How do whisky stones keep your drink cold?
I am delighted there is such a thing as DrinkHacker - it is in my favourites list now!
Apr
30
comment What's the surface area of a liquid? How does evaporation increase if the surface area of a liquid is increased?
Akanksha - did you mean to comment on your own answer to say it was excellent? I am guessing you meant it to go on one of the other ones. ..
Apr
30
comment Standing Waves Energy transfer
Key thing is - energy does travel past nodes. Once you understand that, the rest is easy. See Brandon's comment above.
Apr
30
comment Standing Waves Energy transfer
Remembering my laser optics course at university twenty-something years ago, I would say that skullsinthestars website has a lot of bad physics. Energy does travel past nodes, diffraction is not how dvd players work etc.
Apr
28
comment Standing Waves Energy transfer
It travels along the whole string and interferes. The frequencies which fit will remain, the others will be rapidly attenuated. Still not sure what the tuning fork has to do with it though.
Apr
28
comment Standing Waves Energy transfer
What has the tuning fork got to do with your question? This seems entirely unrelated. So what is ityou are trying to understand?
Apr
27
comment Gravity on the International Space Station
You know @Keith's answer already states this, right?
Apr
19
comment Convert a 200mm linear stroke into 90 degrees motion
What do you mean by two sides?
Apr
15
comment Concerning the curvature of an airfoil (shape)
The force is because the blade is spinning. A wing is travelling in a straight line, but a rotating blade has all the mass of the blade trying to fly outwards!
Apr
6
comment Why does the sky look black in pictures taken from the summit of everest?
@user22834 - The explanation for these observations is that your second paragraph is incorrect.
Apr
6
comment Why does the sky look black in pictures taken from the summit of everest?
+1 ... it does this on every high flying aeroplane, and I have always enjoyed that deep blue above the curve of the horizon.
Apr
4
comment Pascal's law: pressure of fluid at different locations
Bah - guessing it's in a queue. Swapped as per your comment.
Apr
4
comment Pascal's law: pressure of fluid at different locations
@explor - edited